I think she means tossing and turning.
I sleep pretty much completely still, but my bf tosses and turns and throws the comforter around all night, combined with 60lbs of cat on the bed, makes for a sleepless night and lots of pain from sleeping in a weird position to work around everyone else on the bed.
So now we have the mattress pad (we wanted to see if we liked it before committing to the whole bed and save for a nice King size so the cats can sleep on the bed again (with the exception of BumpyBaby, they are banished to the floor until I start sleeping better at least).
The mattress would probably be great on the weight issue, as he would sink into the foam rather than making the mattress slant so much, we are pretty evenly spaced on weight on either side of the bed by the time you add the cats, but I don't feel him tossing so much except when the comforter goes flying
i used to get pain in my lower back too, I went for a massage about a week after getting the mattress pad and since then it hasn't bugged me. I have been for massages before, but the pain came back a few weeks later, I am guessing now because of the mattress.
BF's brother snores terribly, his wife got a mix of oils to burn from a little store downtown and she said it has cut his snoring by half. I will ask her next time I see her!