End of the goodnight kiss? 80% of couples go to sleep without even a simple peck (and 90% don't even bother to say 'I love you').

Even after the passion has faded a little, a goodnight kiss doesn’t seem too much to expect from your partner.

But according to research, it probably is. 

Eighty per cent of couples no longer kiss each other good night, it found – because they’re so focused on getting to sleep

And such is their mission to get a good night’s rest that 46 per cent said they sleep with their backs to their partner.

But that might not be as bad as it sounds. 

Corrine Sweet, a relationship psychologist, said the back-to-back position shows innocence and trust – and body language during sleep cannot be faked. 

She said: ‘Inevitably, once the first flush of lust wears off, with couples naked and entwined, it is more likely that the need for a good night’s sleep predominates, so sleeping back to back becomes a favourable position in bed.’

Indeed, only 1 per cent of the 2,000 couples surveyed by Travelodge said they sleep in what the researchers called the ‘heroic romantic movie scene sleeping’ position, with the man lying on his back and the woman’s head on his chest.

Miss Sweet said: ‘Couples fall into habitual ways of sleeping together that suits their personalities and personal preferences. 

'If something changes in how they sleep together, this can …cause concern for the other partner.’