COMPACT FOLDABLE BED WITH ENHANCED COMFORT

1 . A foldable bed comprising:

a front unit comprising a front frame and a front panel disposed at the front frame;

a rear unit comprising a rear frame and a rear panel disposed at the rear frame; and

a middle support pivotally connecting the front frame of the front unit and the rear frame of the rear unit, thereby allowing the front unit and the rear unit to fold and unfold relative to each other,

wherein:

each of the front and rear panels has a proximal portion;

when the foldable bed is in an unfolded state, the front and rear panels are substantially leveled with each other and the proximal portions of the front and rear panels are disposed adjacent to each other, thereby allowing the front and rear panels to support a rollable cushion in an unrolled state to enhance comfort; and

when the foldable bed is in a folded state, an upper portion of the middle support, the proximal portion of the front panel and the proximal portion of the rear panel collectively form a groove to accommodate at least a portion of the rollable cushion in a rolled state.

2 . The foldable bed of claim 1 , wherein a thickness of the foldable bed in the folded state is substantially the same as a diameter of the rollable cushion in the rolled state.

3 . The foldable bed of claim 1 , wherein a width of the groove is greater than a radius of the rollable cushion in the rolled state, a height of the groove is smaller than the radius of the rollable cushion in the rolled state, or both.

4 . The foldable bed of claim 3 , wherein the width of the groove is at least 1.1 times or at least 1.2 times the radius of the rollable cushion in the rolled state.

5 . The foldable bed of claim 3 , wherein the height of the groove is at most 0.8 times or at most 0.7 times the radius of the rollable cushion in the rolled state.

6 . The foldable bed of claim 1 , wherein:

the front panel comprises a front lip extended downward from at least a portion of an outer edge of the front panel and connected to the front frame;

the rear panel comprises a rear lip extended downward from at least a portion of an outer edge of the rear panel and connected to the rear frame;

the front lip comprises a left front notch and a right front notch adjacent to the proximal portion of the front panel;

the rear lip comprises a left rear notch and a right rear notch adjacent to the proximal portion of the rear panel;

the left front notch and the left rear notch are disposed at a left side of the middle support and are substantially symmetrical to each other;

the right front notch and the right rear notch are disposed at a right side of the middle support and are substantially symmetrical to each other;

when the foldable bed is in the folded state, the left front notch, the left rear notch, the right front notch and the right rear notch collectively assist in accommodating and holding the rollable cushion.

7 . The foldable bed of claim 6 , wherein:

each of the left front notch, the left rear notch, the right front notch and the right rear notch is shaped with a curved edge to abut the rollable cushion in the rolled state.

8 . The foldable bed of claim 1 , wherein:

the front frame comprises a first front subframe, a second front subframe, and a front pivoting/locking mechanism that pivotally connects the first and second front subframes to allow folding and unfolding of the first and second front subframes relative to each other and selectively locks the first and second front subframes to prevent accidental folding of the first and second front subframes relative to each other;

the front panel comprises a first front subpanel disposed at the first front subframe and a second front subpanel disposed at the second front subframe;

the rear frame comprises a first rear subframe, a second rear subframe and a rear pivoting/locking mechanism that pivotally connects the first and second rear subframes to allow folding and unfolding of the first and second rear subframes relative to each other and selectively locks the first and second rear subframes to prevent accidental folding of the first and second rear subframes relative to each other; and

the rear panel comprises a first rear subpanel disposed at the first rear subframe and a second rear subpanel disposed at the second rear subframe.

9 . The foldable bed of claim 8 , wherein each of the first front subpanel, the second front subpanel, the first rear subpanel, and the second rear subpanel is a unitary piece.

10 . The foldable bed of claim 9 , wherein the unitary piece is a monolithic molded plastic panel.

11 . The foldable bed of claim 8 , wherein:

the front unit further comprises a front support pivotally connected to the first front subframe of the front frame; and

the rear unit further comprises a rear support pivotally connected to the first rear subframe of the rear frame.

12 . The foldable bed of claim 8 , wherein:

the middle support comprises a left middle coupling piece at a left side of the middle support and a right middle coupling piece at a right side of the middle support;

each of the left and right middle coupling pieces comprises a first segment and a second segment;

each of the second front subframe and the second rear subframe comprises a left peripheral bar pivotally connected to the first segment of the left middle coupling piece and a right peripheral bar pivotally connected to the first segment of the right middle coupling piece; and

when the foldable bed is in the unfolded state and in an upright position, the second segment of the left middle coupling piece abuts upwardly the left peripheral bars of the second front subframe and the second rear subframe, and the second segment of the right middle coupling piece abuts upwardly the right peripheral bars of the second front subframe and the second rear subframe.

13 . The foldable bed of claim 12 , wherein the middle support further comprises:

a first middle lateral bar connected to the left and right middle coupling pieces;

a left middle leg connected to the left middle coupling piece, the first middle lateral bar, or both;

a right middle leg connected to the right middle coupling piece, the first middle lateral bar, or both; and

optionally, a second middle lateral bar connected to the left middle leg and the right middle leg.

14 . The foldable bed of claim 8 , wherein:

the front support is pivotally connected to the first front subframe of the front frame through a lateral bar disposed at the first front subframe of the front frame; or

the rear support is pivotally connected to the first rear subframe of the rear frame through a lateral bar disposed at the first rear subframe of the rear frame.

15 . The foldable bed of claim 14 , further comprising:

one or more front adjustable bars, each having an end pivotally connected to the front support and another end pivotally connected to the first front subframe of the front frame to control rotation of the front support with respect to the first front subframe of the front frame; and

one or more rear adjustable bars, each having an end pivotally connected to the rear support and another end pivotally connected to the first rear subframe of the rear frame to control rotation of the rear support with respect to the first rear subframe of the rear frame.

16 . The foldable bed of claim 15 , wherein:

the front support comprises a pair of front legs and a front leg bar connected to the pair of front legs;

each of the one or more front adjustable bars is pivotally connected to the front leg bar of the front support and pivotally connected to a peripheral bar of the first front subframe of the front frame;

the rear support comprises a pair of rear legs and a rear leg bar connected to the pair of rear legs; and

each of the one or more rear adjustable bars is pivotally connected to the rear leg bar of the rear support and pivotally connected to a peripheral bar of the first rear subframe of the rear frame.

17 . The foldable bed of claim 1 , wherein:

the front frame and the rear frame are substantially the same as each other and disposed substantially symmetrical to each other; and

the front panel and the rear panel are substantially the same as each other and disposed substantially symmetrical to each other.

18 . A foldable bed assembly comprising:

a foldable bed of claim 1 ; and

a rollable cushion to be placed on the front and rear panels of the foldable bed when the foldable bed is in the unfolded state and to be accommodated at least in part in the groove of the foldable bed when the foldable bed is in the folded state.

19 . The foldable bed of claim 18 , wherein:

a width of the rollable cushion is substantially the same as a width of the front or rear panel;

a length of the rollable cushion is substantially the same as a sum of a length of the front panel and a length of the rear panel;

a thickness of the rollable cushion is in a range of from about 5 cm to about 10 cm; or any combination thereof.

20 . A foldable bed package comprising:

a foldable bed of claim 1 ;

a rollable cushion; and

a box for housing the foldable bed in the folded state and the rollable cushion in the rolled state and accommodated at least partially in the groove of the foldable bed in the folded state.