Do any of you have one of these.. Do you think it helps? Which do you like better if you do.... and do you feel they are safe. I tried to do some research on this.. On the pkg. it says dont use if you have bad circulation. I do have bad vericose veins on my one leg.. but so far it hasnt bothered them. thats the first issue.. next.. what if you have the heated mattress pad.. what about if you ahhh well have <blushing> sex and do you think it is safe to do on this type of pad? Im trying to decide which one to get.... Help anyone.. Thank you in advance.. will be in and out to check back on this.. I hope you all are able to keep warm.. it is so so cold here.. brrrrrrrr!!