Does anyone's LO wear a sleeping bag to bed? I have one in the wardrobe its 0-6 months so I presume I could use it from birth (LO Is 9 weeks) We've been swaddling which works great, but he wriggles out & spends 99% of the night outside the covers. Can I still swaddle him for his last bottle but with the sleeping bag on too? Also, I take it you put no covers on top?? I used them with eldest LO & thought they were great but didn't discover them til late on.