what is IFD VS ILD to determine softness or firmness?
596318
IFD = Indention Force Deflection; ILD = Indention Load Deflection. Force and Load are synonymous, thus IFD = ILD. ILD is widely used in the Foam industry, but technically, IFD is the more "correct" acronym, since that is what ASTM (American Society of Testing and Materials) calls it in the test that determines the IFD value. But again, IFD = ILD. Different industries, vendors, or people will call it one or the other (whatever they are used to). To get really technical, IFD is defined as the amount of force (in pounds), required to "indent" a 50 square inch round plate into a foam specimen a certain percentage (usually 25%) of the specimen's total thickness (usually 4 inches). ILD/IFD reference values: Soft = 14-22; Firm &gt; 34.
3202
I found mine to have the same firmness. The best advice I can give is to force yourself to try it for about 3 nights. You will either love it or hate it. Just take comfort in the return policy!
483475
Sort of both. The top allows it to be soft but it's also firm. Love it. Was unsure about ordering on line, but totally worth it
1409083
At Ultimate Sleep, we offer two types of Latex, the 100% Natural (Dunlop) Latex and a Talalay Latex which is a blend of the botanical and man-made latexes. Both are available in softer ILDs -- the Dunlop in: 16 - 18 (Medium-SOft) and 24 - 27 (Medium-Firm); and the Talalay in: 15 - 19 (soft), 22 - 27 (Medium), and Medium-Firm (28 - 30). The choice of ILD range and also thickness is totally determined by your own preferences as far as how much softness and how deep of a softness you wish to add. Thanks!
1523774
Firm...but not harshly so. Difficult to characterize as soft, but perhaps "medium" firm is closer.
656781
For my 2 inch top memory foam layer I used one with 2 1/2 pound per square foot density. I don't know what ifd rating is. Hope this helps. I am still very happy now with my mattress now that I have the 2 inch memory foam plus the cushy mattress cover on top.
1713622
This is bag is firm but soft at the bottom, however, I would do a preliminary tap and feel check due to shifting of materials when being shipped. I did have one of the inner core sand bags near the surface in the middle of the bag. I had to unload and re-shift the materials to ensure no "brick-like" impacts.
936328
My opinion it is med. I weigh 100 lbs and i barely make an imprint. Member of family weighs right at 195 lbs he says too soft for him. Hope this helps
1126125
I e-mailed asking the same question in early June and Chuck confirmed that they still use 2 lbs density poly foam in the 12/1 bed.As far as I understand each layer is not a different density as density does not directly equate to softness (ILD), but rather quality/durability. At least 1.8 lbs poly is the usual recommendation. http://www.themattressunderground.com/mattresses/support-cores/polyurethane.html
375981
According to my preferences, I would say it is firm, but naturally softens with use. It does hold up to normal wear with repeated use.
174541
Not overly hard.Moderately and comfortably firm is a better description. I love it.
1289151
aloha from hawaii! this pillow is what i would consider a softer pillow. if you want a firmer pillow, probably get an inflatable one that you can adjust to your comfort level. i got this for my son and he likes it a lot and it is comfortable.
89287
3 settings for firmness. I like a mattress really firm and I was pleased with how firm it was but I used on the firm setting only
2005201
Both sides are firm, I couldn't tell the difference until I looked at the label
985794
The 3.3 rating means that the memory foam is SUPER SOFT being less dense and having a softer compression or ILD rating.
2225891
Its firmer. Really comfortable though. I could see it being to firm for alot of people.
1789942
It's different from a standard matterest. It seems to conform to you. So I would say medium to firm.