Baby rolling in sleep

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So my son has started rolling into his tummy which is awesome !-except in the middle of the night or during naps it's not so awesome. He rolls on to his tummy gets "stuck" and cries until I help him. Lately this is happening every few hours at night and we're both not getting sleep again. Do you think it would be wise to get something like a dock a tot to prevent rolling ? Anyone else have this issue ?