6 month old doesn't like his cot
My 6 month old baby boy doesn't like sleeping in his cot he would rather sleep in a single bed people have told me to let him sleep in the single bed and to just short sheet the bed and buy some side rails so he doesn't fall out but I just don't no what to do I'm tired and just want him to sleep through the night and he won't do it in his cot he sleeps in a single bed during the day and doesn't wake up unless I wake him but if I put him in his cot he wakes up straight away or 30 minutes later what do I do?