Shop Now & Save $100. Sleeping In Has Never Been Easier
Shop Now & Save $100. Sleeping In Has Never Been Easier

120-Night Trial

A smart mattress needs a smart sleep trial.

25-Year Warranty

Our limited warranty keeps you protected.

Next Day Delivery

For all customers within 25 miles of a Sit ‘n Sleep.

Highly Rated

Customers love their SmartLife mattress.

Icon_Designs_SmartLife

Smart Sleep Tech

Engineered to give you the best sleep of your life.

Cooling Comfort

Coil Breathability

A Natural Touch

Healthy Support

Center Fit

Daniel P.
Orange, CA

We couldn't be happier!

After realizing my wife and I have completely different ideas of what is comfortable in a mattress we decided to stop by Sit'n Sleep and ended up finding the Smartlife Lily model. We love it! The best thing is that neither of us are stuck with the firmness we choose....YOU CAN ADJUST IT AND IT CAN ADJUST TO YOU! We couldn't be happier!

Dave
Redlands, CA

A good nights rest

My wife and I are 2 totally different body types and we have compromised for over 30 years. I am so glad we found this amazing mattress! It completely supports and adjusts to each of our bodies so we can both sleep better.

John D.
Los Angeles, CA

Best rest I have ever had

I just received my smart life mattress and it has changed my life! I went from back pain every morning to getting the best rest I have ever had. I am so happy that I made the right choice buying this mattress I would recommend it to anyone who needs a good nights rest.

Jim M
Yorba Linda, CA

Easy to use

Never have both my wife and I have slept so good the entire night! She likes the soft support and I like it firmer. With the Lily Luxury Firm SmartLife we have it all. And the App is so easy to use.

Sue H.
Studio City, CA

Very Comfortable

When I was shopping for a mattress I was overwhelmed by all the choices, but once I tried the Smart Life I was really impressed. Having a bed like this with dual comfort and that can track my sleep habits and even give me a sleep score is amazing. The bed is very comfortable and I highly recommend it.

Ari D.
Burbank, CA

Great choice

I love the Smart Life Mattress. I went with the Lotus Plush. I love the fact that the bed's firmness level can be adjusted. It's also great that I can track my sleep time. The smart alarm also helps me wake up without the annoyance of a loud alarm. This is a great choice for anyone who is serious about getting a great night's sleep!

Patrick
Downey, CA

Amazing comfort and support!

Wayne
Los Angeles, CA

Amazing

This Smart Bed is Amazing. It conforms to your body everyday no matter how you sleep. I’m sleeping so much better now and LOVE the relaxation mode.. Highly recommend this mattress!

Molly
Norco, CA

Ahead of its competition!

Truly an awesome mattress! If you have looked at sleep number, you will want to take a closer look at Smart Life. Technology well ahead of its competition! Thanks King Koil for making a sleep product for today’s lifestyle!

120-Night Trial

A smart mattress needs a smart sleep trial.

25-Year Warranty

Our limited warranty keeps you protected.

Next Day Delivery

For all customers within 25 miles of a Sit ‘n Sleep.

Highly Rated

Customers love their SmartLife mattress.

SmartLife Desktop

Frequently Asked Questions

What is the warranty on SmartLife?

King Koil offers a 25-year limited warranty on all SmartLife mattresses. It is not transferrable, but it covers the mattress for defects in workmanship and materials (except in fabric, handles, or tufting rosettes, if featured on this product). For information on this and all warranties, please visit our Warranty Information & Links page.

What is the SmartLife Return Policy?

We offer a 120-night sleep trial. We’re confident in our Sleep Consultants' abilities to match you with the perfect mattress for your body type and budget. But if you find your purchase isn't the mattress of your dreams, we've got your back. It generally takes 8 - 10 weeks to properly break in a new mattress. Much like a new pair of shoes, it also takes time for your body to adjust to a new sleep surface, especially if your old one was out of shape. Once your new mattress is delivered, our 120-Night Sleep Trial comfort guarantee requires you to sleep on it for 30 days. If you are not completely satisfied, you have an additional 90 days to come back into any Sit 'n Sleep location and select another mattress of equal or greater value with a 20% restocking fee not to exceed $500.00. The 120-Night Sleep Trial does not apply to closeouts, floor samples or if your product is found to be dirty, stained or abused. Returns for non-mattress products: All products that Sit 'n Sleep sells have a manufacturer’s warranty. The length and the terms of these warranties vary by manufacturer and type of product. During the warranty period, Sit ‘n Sleep will work with the customer to receive a replacement product if there is a manufacturing defect. If the product is found to be unreasonably unsanitary, or abused by the customer, the product could have its warranty voided. Sit ‘n Sleep will offer a refund provided the product is brand new and still in original manufacturer packaging. If the product is not in this condition, Sit ‘n Sleep will work with the customer to receive a warranty replacement or repair, depending on the product in question.

Is financing available for my new bed?

YES! Sit ‘n Sleep works with Synchrony Financial, Fortiva Financial and American First Finance to provide competitive financing for our customers.  Financing programs ** are available to qualified applicants.  Apply online or see store for details.  Sit ‘n Sleep also offers a “No Credit Check” option through Cross Check for 90 days same as cash.  Buying a mattress set is a major purchase and we want you to be able to purchase the mattress set that best suits your sleep needs. **Subject to credit approval. Minimum monthly payments required.  See store for details or visit our financing page.

Do I need special sheets for my new mattress?

You will need special sheets if you are purchasing a very thick mattress with a thick pillow top. Sit ’n Sleep offers a selection of high profile or deep pocket sheets that fit very well on these thicker mattresses. When selecting sheets, it is also important to keep in mind that your sheets are part of your sleep environment, therefore comfort, thickness and softness should be considered when making your sheet selection.

What are the standard sizes of mattresses?

Mattresses come in five standard sizes. These are Twin (39"x75"), Full (54"x75"), Queen (60"x80"), Eastern King (76"x80") and California King (72"x84"). NOTE: exact mattress sizes vary by manufacturer and by model. The dimensions given are only approximations.

Can I flip or rotate my SmartLife mattress?

No. The SmartLife mattress is constructed to use on one specific side and one direction.

Will I need new pillows with my new mattress set?

Unlike your mattress, you should replace your pillow every 1 - 2 years. Over time, pillows lose their supportiveness and accumulate body oils, fluids and allergy-irritating dust mites. Pillows provide 20% of the total support you need while sleeping and keep your head, neck, shoulders and spine properly aligned. Ask your Sleep Consultant to fit you with a pillow that compliments your mattress selection.

How long will a new mattress last?

While the industry standard is eight to ten years, mattresses should be evaluated regularly for comfort and quality. If you find yourself realizing that the quality of sleep that you are getting is not the same as it was six months earlier, it is time to get a new mattress. In addition, as we go through life, our lifestyles and bodies change. Your mattress should always be comfortable to get the best night’s sleep possible.

Why do I need a mattress protector for my new bed?

We carry a wide variety of mattress protectors designed to inhibit bedbugs, allergens, dust mites, mold, mildew, bacteria, body oils and dead skin cells from accumulating in your mattress. They also safeguard your mattresses as an investment. Mattresses that become stained or unsanitary at any time automatically void their comfort and warranty guarantees. Our protectors are waterproof, breathable, won’t alter the feel of your new mattress and are approved for any mattress purchased from Sit ’n Sleep.

What are the differences between SmartLife and Sleep Number?

Smart mattresses are harnessing advanced technology to revolutionize how we sleep. But not all smart mattresses are created equal. How do you know which one is right for you? Let’s start by comparing two major mattress brands: King Koil’s SmartLife vs. Sleep Number.Both brands offer features designed to promote a better night’s sleep. But when you look at those features side by side, you’ll see that there are significant differences between a SmartLife mattress vs. Sleep Number that clearly show why SmartLife is an unmatched choice for a high-tech, high-quality mattress.

Why Are Smart Life Mattresses Better?



King Koil has put its extensive engineering expertise into crafting the ultimate smart mattress. Every technological innovation has been carefully selected and tested to offer an unparalleled sleep experience compared to beds like Sleep Number. SmartLife is a terrific choice, from the superior comfort and support to the lower price tag (depending on size and model, Sleep Number beds can be up to $1,000 more expensive!). 

Smart Sleep Tech



SmartLife mattresses include singular features that aren’t found in Sleep Number:

  • Body sensing technology that continuously monitors your sleep position and movements and adjusts accordingly.Adaptive support.
    Continuous support between sleepers, without gaps
    Relaxation mode/smart alarm

    • SmartLife is also a clear winner when you compare features offered by both brands:
  • A support system with 80 Smart Cells (40 per side), compared to two air bladders (one per side) with Sleep Number
    Eight independent zones, or four per sleeper; Sleep Number only has two zones, with one per sleeper; 2 for SN)
    SmartLife’s control unit is integrated in the mattress, while Sleep Number’s takes up space under the bed


    • Production & Materials



    SmartLife uses only the top mattress materials compared to Sleep Number and competitors. This includes a cooling cover, breathable memory foam, and the Smart Cells in every mattress, each one built with exceptional craftsmanship.

    Warranty



    Comparing Sleep Number vs. SmartLife mattresses isn’t a contest here, either. SmartLife’s 25-year limited warranty is 10 years longer than Sleep Number!


    SmartLife vs Sleep Number: Go with the smarter choice.

    While both SmartLife and Sleep Number offer smart mattresses, SmartLife’s features truly set it apart. SmartLife has eight independent zones you can control, the Sleep Number mattress only has two. SmartLife comes with a smart alarm and relaxation mode, Sleep Number has neither of these features. Sleep Number’s control unit is external and takes up space under your bed; SmartLife’s control unit is built into the mattress. The Sleep Number mattress is usually more expensive than the SmartLife, sometimes costing $1000 more! You’ll also get a 25-year limited warranty with SmartLife, a decade longer than Sleep Number’s 15-year limited warranty.