Dare I jinx it but I do think that Jasper is working out his dreamtime. I loved the recent book I read that said, "Write this across your heart: Babies have no sleep schedule when they are born. The fact that you do does not occur to them." And so we had a glorious first three months while this baby slept on his own schedule but still gave us long nights--often up to ten hours!
Then he hit four months and everything disentegrated into teething and developmental leaps. It took a solid two months to pull out of that and land knee deep into something that I'm calling the "disco month" where Jasper was fighting sleep so much and didn't want to miss out on a thing. We had midnight parties and 2am parties no matter how boring and exhausted we thought we looked.
Now at seven months old new patterns are emerging and we are noticing that the thumb is his primary soother (Will liked to rub his hair!. Whenever we hear the characteristic "mantra cry" accompanied by thumb sucking we know that sleep is imminent.

Winkin', Blinkin', and Nod
Winkin', Blinkin', and Nod, one night sailed off in a wooden shoe;
Sailed off on a river of crystal light into a sea of dew.
"Where are you going and what do you wish?" the old moon asked the three.
"We've come to fish for the herring fish that live in this beautiful sea.
Nets of silver and gold have we," said Winkin', Blinkin', and Nod.
The old moon laughed and sang a song as they rocked in the wooden shoe.
And the wind that sped them all night long ruffled the waves of dew.
Now the little stars are the herring fish that live in that beautiful sea;
"Cast your nets wherever you wish never afraid are we!"
So cried the stars to the fishermen three - Winkin', and Blinkin', and Nod.
So all night long their nets they threw to the stars in the twinkling foam.
'Til down from the skies came the wooden shoe bringing the fisherman home.
'Twas all so pretty a sail it seemed as if it could not be.
Some folks say 'twas a dream they dreamed of sailing that misty sea.
But I shall name you the fisherman three - Winkin', Blinkin', and Nod.
Now Winkin' and Blinkin' are two little eyes and Nod is a little head.
And the wooden shoe that sailed the skies is a wee one's trundle bed.
So close your eyes while mother sings of the wonderful sights that be.
And you shall see those beautiful things as you sail on the misty sea,
Where the old shoe rocked the fishermen three - Winkin', Blinkin', and Nod.