Pretty sure my Sunday routine has ever involved finishing a can of Red Stripe at 11:30am (or pm)
Get up late
Have breakfast
Play chess moves. Find out its not on telly
Find dodgy stream
Watch dodgy stream
cook dodgy roast
Nap
Mange Tout might fit the bill. It opens at 10.00 for brunch.
Mange Tout is spectacularly good, IMO.
Site > https://www.mangetoutbrighton.co.uk
Brunch menu > https://docs.wixstatic.com/ugd/778da0_3e829d33d362466fbfa00ba59b6e5544.pdf?index=true
Great tip. Nice place, great food and quite exceptional coffee.