Another sleepsack question

DS is still at the point where he is always startling himself with his arms and walking himself up. If I use the sleepsack, there is no way to prevent that is there? I know there are sleepsacks with the swaddle for the arms, but if he is busting out of his swaddle me, then I am sure he will bust out of this swaddle too. Last night was the first night he didn't use the swaddle me and used just a regular blanket, and woke himself up at 3:30 and wouldn't go back to sleep. I gave him a bottle but he only took an ounce then went back to sleep (normally he sleeps through the night until at least 6:30 or7am) I really don't want him to get into the habit of waking up in the middle of the night - what do you suggest I do as far as what to put on him to go to sleep???? TIA

Re: Another sleepsack question

we had the same problem, it stopped when ds started to roll over onto his belly... he slept much better on his belly (around 3.5 months)