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THE GOOD: Sleep Science memory foam mattresses tend to have strong value potential. Reports of sleeping hot are limited. Costco's return policy is excellent.
THE BAD: The beds are too firm for some, especially lighter people. Off gassing / initial odor is possible. Delivery time can be significant.
THE MATTRESS: Sleep Science – in business since 1993 – is an entry- to mid-priced mattress brand. The various memory foam models have 3 to 6.6 inches of of 7, 5, or 3 lbs/ft memory foam over 3 to 9 inches of support foam. (See memory foam density: higher vs lower to learn about the characteristics of different densities.)
THE RETAILER: Sleep Science mattresses are generally available only online, namely at Costco.com. See buying a mattress online: what you should know.
The ratings below are based on over 280 consumer reviews and experiences. The data was gathered using an unbiased, accurate methodology.
|Owner satisfaction||b||Sleep Science memory foam beds have 78% owner satisfaction. ( ).
This rate is above average compared to mattresses overall (72%), but slightly below average compared to memory foam mattresses overall (81%).
The various Sleep Science models tend to have similar owner satisfaction.
|Durability / longevity||C+||Based on limited long-term owner experience data, durability and longevity appear to be somewhat better than average. Within three years of ownership, 12% of owners report the mattress becoming excessively soft, and about 9% of owners report the development of body impressions or an uneven sleep surface.|
|Affordability / price||b||Prices range from $280-$1800 depending on mattress size. A foundation is an additional $200-$400. At least 15% of owners praise Sleep Science for its value and general comparability to the more expensive Tempur-Pedic. (See comparison below.)|
|Less pain||b||At least 25% of owners report less pain, especially less back pain, but about 12% report increased pain usually from excessive firmness. (See mattresses and pain relief for general analysis.)|
|Firmness variety||d||Sleep Science offers limited firmness options. Most owners regard their bed as medium-firm. As the mattresses wear and age, however, they may soften considerably.|
|Contours to body||b||Models with 7 lbs-ft and 5 lbs-ft density memory foam likely will provide moderate to strong contouring and molding to the body, especially for heavier persons. Models with 3 lbs-ft memory foam will provide only moderate contouring and molding.|
|Easy to move on||c-||Due to the fact that several models use higher-density foam, a significant number of owners complain of difficulty of movement including changing positions.|
|Easy to get up off||b-||An edge support system firms up the edges of the bed making it easier to get up off the bed; it also allows for more supportive sleeping near the sides.|
|Back sleep friendly||b+||The beds tend to be suitable for most back sleepers.|
|Side sleep friendly||c+||The above-average firmness of the beds may result in a lack of comfort for some side sleepers.|
|Stomach sleep friendly||b||The beds tend to be suitable for most stomach sleepers.|
|Motion isolation||a||The beds perform well in regard to absorbing motion from one person so that another person on the bed is not much disturbed.|
|No initial odor / off gassing||d+||About 12% of owners report an initial odor. This rate is consistent with high-density memory foam mattresses overall. (See memory foam off gassing for more analysis.)|
|No sleeping hot||c||There are currently no more than an average number of complaints regarding Sleep Science beds acting as a heat trap.|
|Good for sex||c||Memory foam bed owners often have differing thoughts on this issue. (See mattresses and sex for analysis).|
|Large person friendly||b+||Thicker models, including those with at least a 6-inch base layer, tend to suit larger, heavier people (200 lbs+).|
|Small person friendly||c+||People who weigh less than 120 lbs may find the higher density models (those with 7 lbs-ft and 5 lbs-ft density memory foam) to lack conforming ability and pressure point relief.|
|No noise||a-||Sleep Science mattresses are silent under all conditions, but the foundation may creak or squeak.|
|Lightweight||d+||Heavy weight is a top complaint for Sleep Science mattresses and higher-density memory foam mattresses in general. Thicker, and higher density models can weigh over 120 lbs.|
|Warranty||b||The warranty length is 20 years which is as good or better than the warranties of other mattresses in Sleep Science's price range. (See mattress warranties: what you should know.)|
|Return policy||a||Costco has a generous return policy. (See returning a mattress: what you should know.)|
|Customer service||a-||Sleep Science generally has high-rated customer service.|
|Delivery time||d||The mattress can take 2-4 weeks to be delivered which is considerably longer than average.|
|Better Business Bureau rating||A+||The parent company, South Bay International, currently has an accredited A+ rating with the BBB.|
|Company reputation rating||B+||The parent company, South Bay International, receives a company reputation rating of "B+" from Sleep Like The Dead. The rating is based on a combination of metrics including time in business, product ratings and customer service ratings, warranty, BBB rating and stability.|
The following Sleep Science mattresses are currently sold at Costco.com. Prices do not include a foundation. Important: The firmness description for each mattress is an estimate or indicates what tends to be true for owners overall; your personal evaluation may differ.
|Price Twin||Price Full||Price Queen||Price King||Thickness||Firmness||Cover Material||Comfort & Support Layer||Base Layer|
|Escape||--||--||$1500||$1800||14.5"||med-firm||bamboo fabric||1" quilting foam pillow top;
2" 7 lbs/ft memory foam;
3" 5 lbs/ft memory foam
|9" regular foam|
|Comment: Has a thick base layer making it well suited for larger, heavier people (220 lbs+). The mattress itself is heavy – 135-175 lbs depending on size.|
|Ara||--||$1000||$1100||$1300||13"||med-firm||bamboo fabric||6.5" 5 lbs/ft memory foam||6" regular foam|
|Comment: Popular model due mainly to its value potential.|
|Black Diamond||$630||$700||$900||$1150||11"||med-firm||silk blend||2" 5 lbs/ft memory foam;
|7" regular foam|
|Comment: Uses bamboo charcoal fibers to neutralize moisture and fight odor.|
|Astoria||$530||$650||$730||$930||12"||med||polyester blend||2" 4 lbs/ft memory foam;
2" 3 lbs/ft memory foam
|8" regular foam|
|Comment: Has two layers of different density memory foam; this is fairly sophisticated for a bed in this price range.|
|10"||$400||$570||$600||$750||10"||med-firm||jacquard fabric||3" 3lbs/ft memory foam;
2" regular foam
|5" regular foam|
|Comment: Good value potential.|
|Dream 8"||$280||$370||$400||$500||8"||med-firm||polyester||3" 3lbs/ft memory foam;
2" regular foam
|3" regular foam|
|Comment: Not well suited for larger, heavier people (200 lbs+).|
Tempur-Pedic is often the standard by which other memory foam mattresses are judged. The table below shows how Sleep Science beds overall compare to Tempur-Pedic beds overall based on over 2,000 actual owner experiences.
|Contours to body||b||a-|
|Easy to move on||C-||c-|
|No initial odor||d+||d+|
|No sleeping hot||c||c-|
|Good for sex||c||c|
|No rotating / flipping||b||b+|
|Density (lbs/ft)||3.0 to 7.0||2.5 to 7.0|
Our Sleep Science mattress ratings are based on over 285 consumer reviews and experiences. 85% of our consumer data was collected from costco.com.
Find out more about our research methodology and sources.
– Durability and longevity for Sleep Science mattresses appears to be fair or better based on limited owner experience data.
– Sleep Science mattresses acting as a heat trap tends to not be a significant consumer complaint.
– Heavy mattress weight is a main consumer complaint for both Sleep Science beds and high-density memory foam beds in general.
– At least 15 percent of owners praise Sleep Science for its value and general comparability to the more expensive Tempur-Pedic brand.
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