From the WP article "While weekend recovery sleep had some benefits after a single week of insufficient sleep..." so here they are admitting there are some benefits from catching up on sleep debt, which is incompatible with the title that it is a lie.
They then go on to "...those gains were wiped out when people plunged right back into their same sleep-deprived schedule the next Monday.", which again is incompatible with the title because they are saying that there is benefit but most just kill the benefit, so weekend sleep catch-up is not a lie, but Carolyn Y. Johnson (or their Editor in Chief) are lying with the title.
They then go on to "...those gains were wiped out when people plunged right back into their same sleep-deprived schedule the next Monday.", which again is incompatible with the title because they are saying that there is benefit but most just kill the benefit, so weekend sleep catch-up is not a lie, but Carolyn Y. Johnson (or their Editor in Chief) are lying with the title.
That title is click-bait for sure.