If u ever have to spend the night at Toulouse Airport, maybe due to a cancelled flight, a meeting or something similar, I suggest that you book a room at the Radisson Blue Hotel just 500m from the Arrival hall.
The rooms are quiet, windows can be opened and the better, which means more expensive rooms do have a NESPRESSO coffee machine along with some capsules. Food and drinks at Restaurant and Bar are good but very expensive too. They have a SPA area and a little gym, enough for a workout after sitting in an endless meeting.
Beside of all of that and more interesting to me, is the bright outer side of the Hotel. The walls are covered with perpendicular standing coloured plexiglass shields, which, once lit in the sun, shine in various colors, from yellow, green and orange to red. They made my pictures. Enjoy!