• Ideal if you're a combo sleeper
• Decent height (indicates a sturdy mattress)
• No motion transfer

• Much better value-oriented alternatives.
Ambiguous longevity
• No info about weight (lack of spec details = red flag)
• Some motion transfer

There are no online reviews, which is typically a red flag.

The king koil smartlife has several firmnesses.

If you're a side sleeper, pick the softer firmness. Otherwise the mattress isn't firm enough (which then creates support and contouring issues).

If you're a back and/or stomach sleeper, choose a (a) medium firm (5-6), (b) firm (7-8), or (c) very firm (8-9) comfort level. It's important to maintain correct spine alignment when you sleep. Otherwise you'll wake up with serious pain and long-term back/cervical issues.

The king koil smartlife is reasonable for side sleeping.

Make sure to pick their softest offering. If you're not sure which model it is, reach out to them.

Count on passable support for touchy pain points (specifically your neck, hips, shoulders, low back). The top layer of foams relieves tension and pressure throughout the body sufficient.

NOTE: Be sure that your shoulders, hips, and torso all receive equal support if you sleep on your side. This reduces the possibility of chronic pain from concentrated pressure.

The king koil smartlife is decent for stomach and back sleeping.

Ensure to select their luxury firm (6.5/10), firm (7/10) or very firm (8/10) option. If you're not sure which model it is, call or chat with them.

Expect decent support for spinal and cervical positioning (specifically your lumbar). Relatively firm foams on the top layer keep your back straight reasonably well.

NOTE: Focus on finding a mattress that won't sink too far into your hips when sleeping on your back & stomach. It'll throw your spine out of alignment.

The king koil smartlife has several layers worth exploring:

• Bottom Layer: foam for sturdy support.
• Transition Layer: foam for padded pressure relief.
• Top Layer: foam for additional comfort & overall support along the top layer.
• Top Design: tight-top which does a fine job creating a larger sleep surface (good for couples).
• Cover: cooling cover which is fairly standard.
• Bed in a Box: no information available.
• Weight: unknown weight (queen size).

The king koil smartlife height is 12".

• Reasonable edge support because of its foam base.
• Loom and Leaf is a startlingly good alternative if you want an astonishing edge support.

Note: If a mattress uses low-quality materials, it might feel supportive at first, but break down FAST.

Inadequate edge support means less sleep surface (which is not desirable, especially if you sleep with a partner).

Count on wonderful motion transfer due to its foam base.

You or your partner won't feel any motion transfer, and plainly won't rouse you (even if you and your partner are light sleepers).

NOTE: Motion transfer is how much movement transfers from one side of the bed to another. Sleep on a mattress that offers effective motion isolation if your partner tosses and turns.

A better night's sleep leads to a happier life.

There are several noteworthy considerations with the King Koil return policy:

• there is no return policy information available.

• only toppers and cores can be exchanged for firmness and the shipping charges are the only charges involved. The exchange must be completed within 60 days.

Find a brand with an exchange policy that doesn't force you to pay high fees for making an honest mistake.

• has a 25-year limited warranty.

Look for warranties that have at least a 15-year period with no unreasonable limitations or transporation fees.

The price of the king koil smartlife queen size is $4799.

Check their site for the latest prices and discounts.

• have solid customer service availability. (not great).
• have livechat, and seem responsive.
• their phone number and email address are listed at the bottom of their site.

You can buy King Koil at the following locations:

• on their site.
• in their physical stores.

Keep in mind the following info about King Koils shipping and delivery process:

• no shipping information available.

There are 3 fantastic alternatives to the King Koil Smartlife worth considering:

1. Saatva Classic (luxury pocketed coil hybrid): Durable innerspring hybrid that's extremely comfortable and built to last. Compares to top hotel mattresses in the world when it comes to comfort and overall feel. Ideal if you like little bounce but want support and fantastic value.

2. Loom and Leaf (high-density memory foam): Incredible mattress because it has zero motion transfer and excellent pressure relief while still half the price of Tempurpedic.

3. Zenhaven (100% organic and natural talalay latex): Best mattress money can buy. You should check out this mattress if you need a bed that has some bounce, but still fully envelops and supports your pressure points.