Mattress Forum

Our two Costco Sleep Science beds were delivered on Saturday morning! Here's my review:

First, about the delivery. I found the delivery company to be professional and friendly. They called to schedule the delivery, called again when they were on their way and arrived on time (a little early even). They assembled the foundations on my front lawn and seemed to know what they were doing; they were quick and efficient. They set up the beds in the order I requested and exactly as I instructed. I have absolutely no complaints.

Second, the foundations. They are made of metal tubing, with plastic top panels to support the mattress and then all covered with a cloth cover. They seem very sturdy and since these two beds are for my kids, I have no doubt they will be more than adequate. The cover has tan sueded material around the edges to match the lower part of the mattress cover and together they look nicely matched.

Third, the mattresses. I can't imagine how anyone would describe them as too hard or firm. They are too soft for my husband and I (we are larger people), but should be fine for our kids. I do find them comfortable for brief lounging and snuggling with the kids, but just about bottom out at the edge when sitting to get in or out of the bed (for reference, I am 5'-7" and 240 lbs). I haven't slept in one all night yet, but my husband did and said it was too soft, but still better than our awfull inner-spring that we are about to replace. He had some minor back pain upon moving around the next morning. The cover is nice thought nothing spectacular. The upper portion is white cotton material, the lower is tan sueded material. I haven't opened them up, so can't comment on the interior. They were delivered already inside the mattress cover and rolled up in a plastic casing. The delivery men cut open the casing right on top of the foundation. They said it would take about 2 hours for it to fully decompress, but I didn't notice much of a difference 2 hours later. The mattresses definitely have a latex smell. I've heard others describe it as sweet or cookie dough-ish, but I didn't not find it that pleasant. It also wasn't a foul odor, just noticeable. Once they had been sitting a while and had the Luna mattress pads and sheets on them it was only detectable by putting your nose right into the mattress. I found they smell almost exactly like the JC Penney latex pillows I recently purchased, so I don't think their smell was unusual or indicitive of a quality issue.

Overall, I think was a good buy (for smaller people, or those who like soft beds). These are our first latex mattresses and I love the substance and weight of them. So much nicer than the bouncy-ness of an inner-spring mattress.

I have no interest in returning the SS bed because I like the support it provides. Plus for 10in of Latex it pretty much doesnt get any cheaper.  Going with a SS from costco + 700 dollar topper = 1950 bucks for a cal king.  Going with Flobed 12in or SleepEz 13000 = 2400-2900 for less than 13in of latex, and I won't have the benefit of a Top layer being Celsion (Im a very hot sleeper).  If I decided to go with RMM instead for the 3in topper it becomes even cheaper for a 13in full latex bed with pure dunlop support and a talalay top. 
<br><br>  Also I know that my GF and I are very comfortable on the SS bed with 3in of Talay on top, and why mess with a good thing :)

 

<br><br>  BTW you are never going to find a density of latex that is similar to memory foam.  The two products are night and day.  Still I dont see anything wrong with a few inches on memory foam on top of the SS bed, especially if its comfortable to you.

I just wanted to add my experience to the pile here.  We purchased the Eastern King Costco Sleep Science 10" latex mattress w/ foundation and it arrived about a month ago.  Overall, I have been very pleased with the mattress.  I am a very heavy person and I was getting hip pain from side-sleeping.  I would have to wake and turn over multiple times per night.  In the last month, I can't remember waking before the alarm went off in the morning.  It's so nice! We did not flip, so I assume we still have the soft side up.  I was concerned that with my weight 10" would not be enough or that this particular mattress would be too soft.  I have found neither to be the case.  My 155-pound husband also likes the mattress (but he can sleep on almost anything).

The biggest problem we've had is...you guessed it... the foundation.  It really is awful.  I tried hard to like it.  It didn't squeak too badly the first few days.  Then it started, and got worse.  Plus, whenever I sat down on my knee or otherwise did not apply even pressure, I heard the plastic crackling.  There are clearly areas with poor support.  While I am sure people like it, it will not work for us.  So, I have started the return process.  

In place of the Costco foundation, we purchased a new bed frame from IKEA along with the Sultan Laxeby slatted base.  It's the most expensive at $200 for the king.  The new frame and base are much more expensive than the Costco frame.  However, you get what you pay for.  There is a "spring" with the new base that was lacking before.  Plus, the base can be adjusted on both sides for different firmness levels.  We've been experimenting and just a small adjustment makes a big change.

I think we will be very happy with the Sleep Science mattress and I'm glad Costco has such a great return policy.  I have been dreading buying a mattress for years because I can't tell in a store how I'm going to like a mattress long-term.  Not feeling that stress has been wonderful.

Roy,

 

The slatted base has 42 slats.  Of those slats, 15 have double slats.  When the two slats are adjusted to be held tightly together, they are firmer.  When you adjust the slider so that the slats are apart, it's softer.  I can't say if the foundation will make the mattress itself firmer.  However, the IKEA base is more firm than the Costco base.  So, by changing the base I did adjust the firmness of the overall combination.  The firmest possible would be to put the mattress on a concrete floor, but that's not really good for the mattress.  But, doing that would tell you how firm the mattress itself is, I guess.