Once they can walk I think grobags are a bit dangerous. What is your LO tries to get up and walk about? A fleecy onesi is a good idea. The company that does grobags also sells quilts with poppers so it stays on the bed. Think they are called 'o to 3'. The company.
Last night I had to go tuck her in twice even though she was wearing vest, pj top and a fleecy one piece (no feet). In the cot she slept through from 7pm- 6.30 am.
So back to gro bag tonight. I' m not worried about her falling out and getting tangled as she tries to get out , because up to now, when she wakes she just sits up in bed and sings to herself. She doesn' t climb down until I open the door and put the lights on.