• Ideal if you're primarily a back and stomach sleeper
• Decent height (indicates a sturdy mattress)

• Much better value-oriented alternatives.
Ambiguous longevity
• Extremely short (indicates low quality materials)
• Average edge support

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

The sapphire sleep cool phase hybrid is a firm (roughly a 7-8 on a 1-10 firmness scale).

A firmer model like this is built for back and stomach sleepers that likely have back or spine issues and need correct spinal and cervical alignment (which is critical for long-term health).

Stay away if you sleep on your side. You won't get the contoured support your pressure points need if you're laying on a flat and even surface with very little 'give'.

The top style does a good job maintaining a flat and even sleep surface to maintain a firmer feel.

The sapphire sleep cool phase hybrid is inadequate for side sleeping.

Make sure to choose their plushest offering. If you're not sure which model it is, chat or call with them.

Expect acceptable support for delicate pain points (specifically your low back, neck, shoulders, hips). Top foams relieves tension and pressure throughout the body sufficient.

NOTE: If you sleep on your side, make sure you support your shoulders, hips, and torso equally. Otherwise, you'll suffer long-term nerve and pain problems.

The sapphire sleep cool phase hybrid is fantastic for back and stomach 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, reach out to them.

Bank on reasonable support for spine and cervical positioning (specifically your lower back). Relatively firm foams on the top layer keep your back straight extremely 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 sapphire sleep cool phase hybrid has several layers worth exploring:

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

The sapphire sleep cool phase hybrid height is 14".

• Suitable edge support because of its pocket coil style.
• Saatva Classic is a phenomenal alternative if you want awesome 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).

Bank on suitable motion transference as a result of the pocket coil style.

You or your partner may possibly experience a fair amount of motion transference, but likely won't awake you (especially if you or your partner are heavy sleepers).

NOTE: Motion transfer measures how much movement shifts from one side bed side to another. If you sleep with a partner who tosses and turns during the night, get a mattress that offers effective motion isolation.

Less motion transfer = deeper sleep = happier life.

There are several noteworthy considerations with the Sapphire Sleep return policy:

• they offer a 101-night trial, if you are not satisfired, you can return the mattress, but they won't be able to refund the shipping fees.

• 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 10-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 sapphire sleep cool phase hybrid queen size is $4449.

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 Sapphire Sleep at the following locations:

• on their site.

Keep in mind the following info about Sapphire Sleeps shipping and delivery process:

• no shipping information available.

There are 3 fantastic alternatives to the Sapphire Sleep Cool Phase Hybrid 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.