The Koran promises many desirable rewards for the Moslems in Allah's heaven.

LXXVI/13-22:
Reclining therein upon couches, they will find there neither (heat of) a sun nor bitter cold. The shade thereof is close upon them and the clustered fruits thereof bow down.

Goblets of silver are brought round for them, and beakers (as) of glass

(Bright as) glass but (made) of silver, which they (themselves) have measured to the measure (of their deeds).

There are they watered with a cup whereof the mixture is of Zanjabil,

The water of a spring therein, named Salsabil.

There serve them youths of everlasting youth, whom, when thou seest, thou wouldst take for scattered pearls.

When thou seest, thou wilt see there bliss and high estate.

Their raiment will be fine green silk and gold embroidery. Bracelets of silver will they wear. Their Lord will slake their thirst with a pure drink.

(And it will be said unto them): Lo! this is a reward for you. Your endeavor (upon earth) bath found acceptance.

LV/46-59:
But for him who feareth the standing before his Lord there are two gardens.

Which is it, of the favors of your Lord, that ye deny?

Of spreading branches.

Which is it, of the favors of your Lord, that ye deny?

Wherein are two fountains flowing.

Which is it, of the favors of your Lord, that ye deny?

Wherein is every kind of fruit in pairs.

Which is it, of the favors of your Lord, that ye deny?

Reclining upon couches lined with silk brocade, the fruit of both gardens near to hand.

Which is it, of the favors of your Lord, that ye deny?

Therein are those of modest gaze [1], whom neither man nor jinni will have touched before them,

Which is it, of the favors of your Lord, that ye deny?

(In beauty) like the jacynth and the coral stone.

Which is it, of the favors of your Lord, that ye deny?

LXXXIII/22-28:
Lo! the righteous verily are in delight,
On couches, gazing.

Thou wilt know in their faces the radiance of delight.

They are given to drink of a pure wine, sealed,

Whose seal is musk - For this let (all) those strive who strive for bliss.

And mixed with water of Tasnim.

A spring whence those brought near to Allah drink.

LVI/35-40:
Lo! We have created them a (new) creation
And made them virgins,

Lovers, friends,
For those on the right hand;

A multitude of those old
And a multitude of those of later time.
 

LVI/11-24:
Those are they who will be brought nigh
In gardens of delight;
A multitude of those of old
And a few of those of later time,
On lined couches,
Reclining therein face to face.
There wait on them immortal youths
With bowls and ewers and a cup from a pure spring
Wherefrom they get no aching of the head
nor any madness,
And fruit that they prefer
And flesh of fowls that they desire.
And (there are) fair ones with wide, lovely eyes,
Like unto hidden pearls,
Reward for what they used to do.
 

Footnote

1.  .. those of modest gaze is translated as 'bashful virgins'
     by Dr N.J. Dawood in the Holy Koran translated by him.