Sleep your way to the toppublished at 18:16 British Summer Time 22 April 2015
If Real Madrid's players look fresh deep into tonight's game, it could all come down to a killer siesta this afternoon.
No, honestly.
Madrid have 81 five-star, fingerprint-accessed bedrooms at the club's training complex with their own 'sleep environment' of temperature, lighting, air quality, duvet-type and mattresses inside the rooms.
At Manchester City they have 32 en-suite bedrooms each decorated with sleep-inducing wallpaper - a light green design with ever decreasing circles.
I'm not making this up. All of us at BBC Sport learned a lot about sleep this week thanks to a fascinating read from Alec Fenn.