As a child I learned to take the sleeping bag with me when I turn over. I like being swathed in a lofty down cocoon with the draft collar of my WM Ultralight snugged up tight on cold nights--no drafts!
A warm, thick insulated air pad helps, too. I've had a bit of an adjustment with my 3.5" thick insulated mummy pad from KookaBay, getting used to the 12" wide foot, but finally I'm learning, and it's really luxurious!
It's important to have good sticky lines painted on the underside of your pad, especially with a tent with a silnylon floor. Lines/spots on the floor are not enough. The two together work fine. Unlike other pads I've had, Silnet doesn't stick to the KookaBay pad, but peels off leaving pieces of silicone all over the tent floor. I'm trying a non-silicone sealer next time!
I still toss and turn, but I do a lot less of it on the new pad!