Napping

So I've never been much of one for napping, at least I try not to be. They generally just make me groggy and I feel like I'm wasting time when I do them. However, recently I've been having a problem. You see, my bed is sort of a safe place for me and really comfortable at the best of times. So what's happening is I lay down, thinking I'll get comfortable for a few minutes only to find myself an hour or so later, waking up from a nap. It's rather annoying and has actually put me in a bad place on more than one occasion. Anyway, there's little point to this story. It's mostly writing practice with the hope of a little advice on how to avoid this (besides the obvious, don't lay in your bed) or stories of other people having this problem. Anywho, I wish you all a fine day and I eagerly await to hear back from you.