Coast magazine:

New research carried out by the National Trust has revealed that a coastal walk will make you sleep longer and feel happier. The survey, which is part of the National Trust’s Great British Walk campaign, discovered that coastal walkers in the UK sleep 47 minutes longer after a walk by the sea, and 36 per cent of people say that even just the thought of the ocean helps them sleep at night.

Feeling a teeny, tiny bit smug now.

A walk on Shoreham Beach

(You can download the original research – Sleep, Mood and Coastal Walking, which Coast failed to link. Tsk.)