Sleeping through the night

When will my LO ever sleep through the night 😭 He is 5.5months now, having 1 feed at midnight between 12-2am and stirs on and off throughout the night. I am desperate for him to sleep through the night so I can get a good night sleep too 😭 I know I sound selfish for wanting a good sleep but I am really really really tired. Some nights he only stirs for milk but some nights are harder when he stirs every hour for pat pats. He's been unwell the last 1 week where he caught a cold, this is the reason why he is behaving more clingy and sticky even at night when he sleeps? I feel really sad whenever I hear my colleague's baby (of similar age), sleeping through the night but my little one seems to be really far from sleeping through. #advicepls #pleasehelp