I've had this for a week now and really feel it has helped me sleep more soundly and not wake up so often.  I thought it might be too heavy, but it isn't! I was a little disappointed on how mall it was since it sort of floats in the center of the mattress and shifts around some during the night. Since it has loops in the corners it would be very easy to secure it to a cover which would anchor it in place.  Any plans on making a cover that would drape over the side of the mattress like a sheet?