Loose Skin on Stomach After Pregnancy and Weight Loss. Candidate for CoolSculpting?

You may want to wait for at least 9 months after you delivered and be sure your weight is where you want it to be before considering coolsculpting. The rule is that hanging skin will still hang after fat reducing procedures. You are correct that the hanging skin thickness would be reduced after coolsculpting.

Coolsculpting is an effective way to reduce fat.  However, you are right to point out that coolscupting will not help sagging skin due to weight gain during pregnancy and subsequent weight loss.  (BTW - good for you for losing so much weight).   The sagging skin may become even more pronounced when you lose more fat via coolsculpting.  A tummy tuck will give you a better aesthetic result, but it is more expensive and requires more downtime.