College of Lullabies

Bards of the College of Lullabies tend to take a less head-on approach to most things. To them it both makes sense and is easier to handle people while they are asleep. Whether putting their allies to sleep to save and heal them using the bardic feature Song of Rest or putting their enemies to sleep to make a quick getaway or dare I say... dispatch them with haste.

These Bards are the sleepy, day-dreamy type. They are almost whimsical, not only are they excellent at telling bedtime stories but they also tend to be great companions. They have a calming air about them that puts people at ease, so it's hard to suspect that they could be in any way dangerous. Most other bards like bards from the College of Lullabies, especially bards with sleeping problems. They are always there with a cup of warm milk and a lullaby just for you.

Powerful Mockery

You learn how to empower your speech with subtle magic, You gain the vicious mockery cantrip, when you cast vicious mockery you gain a bonus to each damage roll equal to your charisma modifier. Additionally, while a target is asleep they have disadvantage on saving throws against vicious mockery.

Lullaby

Your magic is focused through your words. You gain the Sleep spell and  Your music can empower your casting, instead of the normal 5d8 rolled for casting sleep you instead roll 10d4, this increases if you cast it at higher levels. you roll an extra 2d4 per level above 1st. 

Enhanced song of rest

Your mastery of sleep magic enhances your song of rest to bolster whoever hears your song of rest, they gain temporary hit points equal to your level plus your charisma modifier.

oneiromancy

You have mastered the art of sleep magic, the ultimate culmination of this mastery takes the form of oneiromancy, the ability to magically interpret dreams to foretell future events. Whenever you finish a long rest you can expend uses of bardic inspiration, the dice turn into oneiromancy dice, you roll the oneiromancy dice you expend and record the result, whenever you, an ally, or an enemy makes an attack roll, ability check, or saving throw you can add or subtract the any of the numbers rolled. You lose all oneiromancy dice whenever you finish a long rest.

Additionally, whenever you cast the sleep spell you can expend a use of bardic inspiration or an oneiromancy die to gain a bonus to the health pool equal to your level plus your charisma modifier and you roll d6 instead of d4 when you cast sleep.