Would be a hard challenge
@NexusMoon but It would be cool to beat, The Big One is a perfect choice for this record, other than the first drop it’s chill relaxing layout and has a nice slow lift hill gives you lots of rest time, you also have great view to keep you busy, also it’s a well known giant coaster.
If you don’t want to beat his time on it you kind of have to go on a more impressive coaster, you could stay on a kiddy cred for longer but it’s not as impressive as the Big One. I thought of Shambhala but while it’s smooth and comfy I think I would struggle to sleep on it.
So my pic would be
Tobotronc, the longest “coaster” on earth sounds impressive, with a 5577ft lifthill you could easily get some shut eye, you could even set the lever so you go down the mountain slow at night so you can sleep all the way through. Only thing is if you are limited to the UK there is always Fforest coaster ( hopefully they let you go round for free

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