Researchers at Sweden's Karolinska Institute claim that sleeping till late on weekends, disturb the natural rhythms of the body leading to one feel worse rather than relaxed.
Lead researcher Susanna Jernelov said, "It's partly because of our circadian rhythm, so when you sleep in later, it's like giving yourself a bit of jet-lag and jet-lag makes you less bright and perky," reports The Independent.
"If you sleep a little bit too little all the time and just catch up on the weekends, you are messing with your circadian rhythms, you should stay on a regular schedule but that doesn't really work with most people's lives," she added.
Her claims have also been vouched by fellow researcher Bjorn Bjorvatn, who said "You should get up and go to bed at about the same time every day. Do not sleep in late on weekends. Do not have a lie-in. If you get up at 12pm on the weekend, it will take time for your rhythm to adjust back"
And despite the onset of autumn and winter being the most tempting time to stay in bed, it was actually the most important time of the year to stick to the normal sleep routine for wellbeing.