[ If Philip did notice (which isn't unlikely) then he probably already forgot about it by now. His memory is only one part that refuses to be strained needlessly until more sleep is made available.

Speaking of which, Philip only knows what Daniel told him, so his knowledge of the actual sleep issue is limited. Hence the suggestion: ]

...Did you try earplugs? I've seen some in one of the labs and if you've got a room... they might help with the sounds.

[ Not that Philip is entirely sure if the conversion works that way, but it's a suggestion at least. ]